For all you self-managing landlords out there, how far is too far?

[Jim B.]

I'm looking for a multi-family in an area thats roughly 1 hour away from where I live.  Initially, I want to manage the properties myself, until I get 2-3 properties under my belt to increase cash flow.  

So, question is, is it reasonable to think that I could manage the properties from an hour's drive away, or am I being crazy?  They are fully rented by the way, so tenant screening/marketing is not an immediate concern at this point, but obviously will be in the future.